Exhibit (11) McKESSON CORPORATION COMPUTATION OF EARNINGS PER COMMON SHARE (unaudited) (in millions except per share amounts) Three Months Six Months Ended Ended September 30 September 30 -------------- -------------- 1997 1996 1997 1996 ------ ------ ------ ------ FULLY DILUTED EARNINGS PER SHARE Income after taxes from continuing operations $ 39.6 $ 25.8 $ 77.2 $ 4.4 Dividends on preferred securities of subsidiary trust 1.5 - 3.1 - Income from discontinued operations - 2.3 - 5.6 ----- ----- ----- ----- Total $ 41.1 $ 28.1 $ 80.3 $ 10.0 ===== ===== ===== ===== Fully diluted shares Common shares outstanding (1) 48.2 43.8 48.1 44.6 Convertible preferred securities - dilutive 2.7 - 2.7 - ----- ----- ----- ----- Total 50.9 43.8 50.8 44.6 ===== ===== ===== ===== Fully diluted earnings per share Continuing operations $ 0.80 $ 0.59 $ 1.58 $ 0.10 Discontinued operations - 0.05 - 0.12 ----- ----- ----- ----- Total $ 0.80 $ 0.64 $ 1.58 $ 0.22 ===== ===== ===== ===== PRIMARY EARNINGS PER SHARE Income after taxes Continuing operations $ 39.6 $ 25.8 $ 77.2 $ 4.4 Discontinued operations - 2.3 - 5.6 ----- ----- ----- ----- Total $ 39.6 $ 28.1 $ 77.2 $ 10.0 ===== ===== ===== ===== Primary shares Common shares outstanding (1) 48.0 43.8 47.8 44.6 ===== ===== ===== ===== Primary earnings per share Continuing operations $ 0.82 $ 0.59 $ 1.61 $ 0.10 Discontinued operations - 0.05 - 0.12 ----- ----- ----- ----- Total $ 0.82 $ 0.64 $ 1.61 $ 0.22 ===== ===== ===== ===== (Continued) Exhibit (11) McKESSON CORPORATION COMPUTATION OF EARNINGS PER COMMON SHARE (unaudited) (in millions except per share amounts) Three Months Six Months Ended Ended September 30 September 30 -------------- -------------- 1997 1996 1997 1996 ------ ------ ------ ------ PRO FORMA ADJUSTED TO REFLECT DECLARED STOCK SPLIT (2) Fully diluted shares Common shares outstanding (1) 96.4 87.6 96.2 89.3 Convertible preferred securities - dilutive 5.4 - 5.4 - ----- ----- ----- ----- Total 101.8 87.6 101.6 89.3 ===== ===== ===== ===== Fully diluted earnings per share Continuing operations $ 0.40 $ 0.29 $ 0.79 $ 0.05 Discontinued operations - 0.03 - 0.06 ----- ----- ----- ----- Total $ 0.40 $ 0.32 $ 0.79 $ 0.11 ===== ===== ===== ===== PRIMARY EARNINGS PER SHARE Primary shares Common shares outstanding (1) 96.1 87.6 95.7 89.2 ===== ===== ===== ===== Primary earnings per share Continuing operations $ 0.41 $ 0.29 $ 0.81 $ 0.05 Discontinued operations - 0.03 - 0.06 ----- ----- ----- ----- Total $ 0.41 $ 0.32 $ 0.81 $ 0.11 ===== ===== ===== ===== (1) Common shares outstanding have been computed by adding the monthly averages (beginning of the month plus end of the month divided by 2), dividing the aggregate by 3 or 6, as appropriate, and, adjusting this total for dilutive stock options using the treasury stock method based on the greater of the common share price at the end of the period or the average common share price during the period (fully diluted) and on the average common share price during the period (primary). (2) On October 29, 1997 the Company's board of directors declared a 2 for 1 split of the Company's common stock effective January 2, 1998 to shareholders of record on December 1, 1997. (Concluded)